Home / 142,917.26-197,224.71-79,255.22

Finding the Fourth Proportional to 142,917.26, 197,224.71 and 79,255.22

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Solution

The fourth proportional to 142,917.26, 197,224.71 and 79,255.22 is: 109,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,917.26 : 197,224.71 = 79,255.22 : x
  2. Step 2: Convert to fraction form
    142,917.26/197,224.71 = 79,255.22/x
  3. Step 3: Cross multiply
    142,917.26x = 197,224.71 × 79,255.22
  4. Step 4: Simplify right side
    142,917.26x = 15,631,087,780.49
  5. Step 5: Solve for x
    x = 15,631,087,780.49/142,917.26
  6. Step 6: Final answer
    x = 109,371.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.